Crusher.



E. P. LE COMPTE & R. COLVIN.

CRUSHEH.

APPLICATION FILED APR. 4. 1914 1 135 Patented. Apr. 13, 1915.

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CRUSHR.

APPLICATION FILED APR. 4. 1914. 1 135 Patented Apr. 13, 1915.

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APPLICATION FILED APR. 4. I914,

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THE NORRIS PETERS co. PHOTOLITHO., WASHINGTON. D. C.

EDWARD P. LE GOMPTE AND RUBIN COLVIN, 0F PARK CITY, UTAH.

CRUSI-IER.

Application filed April 4, 1914.

To all whom it may concern Be it known that we, EDWARD P. LE Coirrrn andRUBIN COLVIN, citizens of the llnited States, residing at Park City, inthe county of Summit and State of Utah, have invented certain new anduseful Improvements in Crushers, of which the following is aspecification.

Our invention relates to improvements in machines for crushing material,such as stone, coal, grain, or in fact any material that it is desiredto so treat, and has particular reference to a machine of this characterembodying a plurality of rolls between which the material to be groundis passed, such rolls having suitable frictional engagement with saidmaterial solely by virtue of the weight of one of the rolls.

' An important object of the invention is to provide a machine of theabove-mentioned character, which is simple in construction, inexpensiveto manufacture, free from the employment of springs to urge the rollstoward each other, and reliable in operation.

()ther objects and advantages of this in vention will be apparent duringthe course of the following description.

ln the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate like parts throughout thesame, Figure 1 is a side elevation of a crusher embodying our invention,Fig. 2 is a plan view thereof, Fig. 3 is a central. longitudinalsectional view through the machine, Fig. 4 is an end elevation of thesame, Fig. 5 is a transverse sectional view taken on line 55 of Fig. 1,Fig. 6 is a similar view taken on line 66 of Fig. 1, and Fig. 7 is adetail sectional view taken on line 77 of Fig. 1.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of the invention, the numeral 10 designates ahorizontal main frame, supported by legs 11. These legs are connected bylongitudinal strips 12, as shown.

.rkrranged upon the frame 10 are upstanding vertically inclined guides13, (see Figs. 1 and 7) having bases 14, secured to the frame 10 bymeans of bolts 15, or the like. lviounted to reciprocate within theinclined guides are bearings 16 (Fi 7) provided upon their edges withgrooves 17, to receive ribs 18, which are formed upon the guides, a.shown. Journaled through the bearings lo, which move up and do n in aninclined Specification of Letters Patent.

Patented Apr. 13, 1915.

Serial No. 829,532.

path, is a transverse rotatable shaft 19, which may be driven by apulley 20, secured to one end thereof, as shown. Rigidly mounted uponthe shaft 19, to rotate there with is a main driving crushing roll 21,provided with a removable annular shoe or rim 22, locked to the roll forrotation therewith by keys 28, mounted in slots 24, as shown.

Mounted to reciprocate upon the frame 10 upon one side of the roll 21 isa carriage 25, operating within guides 26, as more clearly shown in Fig.2. The inner ends of this carriage are provided with bearings 27,receiving a transverse shaft 28, carrying an upper driven crusher roll29, to receive its rotation from the roll 21. This roll 29 is identicalwith the roll 21, except that it is smaller, the same being preferablyprovided with a shoe or rim, as shown.

Means are provided to move the carriage 25 in either direction,comprising (see Fig. a rotatable shaft 30, turned by a hand crank 31 orthe like. This shaft 30 is journaled through a transverse portion 32 ofthe frame 10, to rotate therein, but the same cannot partake ofperceptible longitudinal movement with relation thereto. The innerportion of the shaft 30 is provided with screw-threads 38, operatingwithin a screwthreaded opening 34, in a transverse part 35 of thecarriage 25, as shown. It is thus seen that by rotating the shaft 30,the carriage 25 will be moved back and forth with relation to the frame10.

Mounted to reciprocate upon the lower strips 12 is a horizontal carriage36, identical in all substantial respects with the carriage 25, asshown. The same guide means are employed in connection with the carriage86 and the same means are employed to move or reciprocate it, as weredescribed in connection with roll 29. Journaled through bearings 37 is ashaft 38, carrying a lower driven crushing roll 29, preferably identicalwith rolls 21 and 29, but of a different diameter, as shown.

Secured to one end of the frame 10 are supports or standards 40, to theupper ends of which are connected an inclined feed hopper 41, preferablyhaving its discharge end slidably engaging the roll 29, to dischargematerial to be treated upon the same. As more clearly shown in Fig. 3, atrough or chute 42 is disposed below the roll 29, and is secured to thecarriage as shown at 43.

V lows :The material to be treated is fed into the hopper 41 and passestherefrom between rolls 21 and 29, for the first grinding. It thenpasses into the chute 42, and is fed thereby between rolls 21 and 39 forthe final or second grinding, the same being discharged from betweenthese rolls and collected in any suitable receptacle.

It is obvious that as the roll 21 moves up and down in an inclined path,it will bear against both rolls 29 and 38, due also to their arrangementwith relation thereto. In order that this pressure may be evenlydistributed upon the rolls 29 and 39, means have been provided toindependently move the same toward and away from the roll 21.

It is to be understood that the form of the invention herewith shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes in the shape, size,'and arrangement of parts may beresorted to, without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described the invention, we

4 claim 1. A machine of the character described, comprlsing a supportingstructure, an upper driven roll, a lower driven roll arranged to oneside of the upper driven roll, a common driving roll disposed above thelower driven roll and upon one side of the upper driven roll andengaging both of them to rotate the same, a shaft carrying the drivingroll, bear- 40 ings for the shaft, and guides for the hearing which arevertically inclined away from the two driven rolls whereby the commondriving roll when rising and falling will simultaneously move out of andinto engage- 15 ment with both of the driven rolls.

2. A machine of the character described, comprising a supportingstructure, an" upper driven roll, a lower driven roll arranged to oneside of the upper driven roll, a common driving roll disposed above thelower driven roll and upon one side of the upper driven roll andengaging both of them to rotate the same, a shaft carrying the drivingroll, bearings for the shaft, guides for the bearings which arevertically inclined away from the two driven rolls whereby the commondriving roll when rising and falling will simultaneously move out of andinto engagement with both of the driven rolls, and means to horizontallyadjust each driven roll with respect to the driving roll.

In testimony whereof we affix our signatures in presence of twowitnesses.

EDVARD P. LE'COMPTE. RUBIN COLVIN.

Vitnesses HENRY SHIELDS, WILLIAM TREVITHICK.

' Copies of thispatent may be obtained for five cents each, byaddressing the Commissionen of Patents,

Washington, D. G.

